Porter evarts



@inittab gieten stent @ffice Letters .Patent No. 74,524, dated February 18, 1868.

`nurlwvslvmur IN WINDLAssEs.

dige rlgetrle referat tu im tteseettts zrteut tnt mating ,not nf ite stmt.

TO ALL WHOM IT MAY CON CERN z Be it known that I, PORTER EVABTS, of Madison, in the county of New Haven, and Sta-te of Connecticut, have inventada new and useful Improvement in @gratas for Working Windlasses; and I do hereby declare that the following is a full, clear, and exact deseripfiorhmelwhicdvill enable those skilled in the art to make and use thesane, reference being had to the accompanying drawingsfrmingpart of this specification.

Figure 1 is alrearpview of afships windlass, illustrating my improvement.

Figure 2 is a vertical section of the same, taken through the linew z, fig. 1.

Figure 3 is a detail top view of the lever.

Similar letters` of reference indicate corresponding parts. p

My improvement has for its object to so improve the construction of the apparatus for working a. ships or other windlass, that` the opera-tor can instantaneously adjust it to obtain increased power or increased speed, as he may desire; and it consists in the manner in which the pawl-pitmen are adjustably connected. to the working lever, as hereinafter more fully described.

is the deck or loornpon which the windlass is placed, and to which it is secured. B are the bearings or supports in which the journalsot` the shaft or drumC of the.windlass work. D are the eases in which the driving-pawls are pivoted, and which slide inV circular grooves formed in the sides of the ratchet-wheels E, attached to the shaft or drum C. F is the holding-pawl, which is pivoted to-the post or standard G, and which takes hold of a ratchet-wheel attached to the central part ofthe drum or shaft C.. Ifis the lever-socket, which is pivoted to the upper part of .the post or `standard G, and in which the hand-bars or levers J, by which the windlass is operated, are placed.v K are coun(acting-bars,y lower ends of which arepi'voted to the pand-eases D. The upper ends of the bars K have loops K formed `upon or attached to them, through which the ends of the lever-socket I are passed. The uppei` sides of the arms ofthe socket I, or ofthe hand-levers J, have notches formed in them, as shown in figs. 1 and 3. Y

By this construction, hy moving the looped ends of, the oonnectinrg-hars K inwards towards the pivotingpoint of" the socket I, the short -arm of the levers will be shortened, so as greatly to increase the power of the machine; and, by moving the looped ends of the connecting-bars K outward, or into the outer notches of the socket I, the speed of the windla-ss will be greatly increased, the short arms ofthe levervbeing lengthened. The peculiar manner in which the connection between the bars K and lever-socket I is formed enables the looped ends of said bars K to be shifted, to obtain increased power or increased speed almost instantaneously, and the said shifting can be done with equal facility whether it be light or dark. Il' desired, the notched part of the socket I may be covered with a pivoted cover, z', which prevents ropes or other things yfrom getting into the notches of said socket, to clog or prevent the free working'or movement of the loops 7c. The cap or covert' also tends to keep the loops c in place when the apparatus isworking, but the weight of the parts is usuallysuilicient for this purpose.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent- The adjustably-connected barsK to the working-lover I J, by means of loops 7c', formed upon the upper ends of said bars K, and notches formed in the upper side ofthe working-lever I J, substantially as herein shown and described, and for .the purpose set forth.

The above specification of my invention signed by me, this 31st day ofy December, 1867.

PORTER EVARTS.

Witnessesz' WM. Al?. McNAMaRA, .TAMEs T. GRAHAM. 

